<template>
    <div class="mui-numbox" data-numbox-min='1'>
        <button class="mui-btn mui-btn-numbox-minus" type="button">-</button>
        <input id="test" class="mui-input-numbox" type="number" value="1"
               @change="countChanged" ref="numbox" readonly />
        <button class="mui-btn mui-btn-numbox-plus" type="button">+</button>
    </div>
</template>

<script>
    import mui from '../../lib/mui/js/mui.min.js'

    export default {
        mounted(){
            //初始化数字选择框
            mui(".mui-numbox").numbox();
        },
        methods: {
            //每当文本框的数据被修改了的时候，就把最新的数据，通过事件调用，传递给父组件
            countChanged() {
                this.$emit("getcount", parseInt(this.$refs.numbox.value));
            }
        },
        props: ["max"],
        watch: {
            //属性监听
            'max': function (newVal, oldVal) {
                mui(".mui-numbox").numbox().setOption("max", newVal);
            }
        }
    };
</script>

<style lang="scss" scoped>

</style>